That s the reason all the major outboard and outdrive manufacturers have switched to aluminum anodes as standard.
Zinc anodes for aluminium boats.
The anode deteriorates instead of your boat.
Aluminium anodes suitable for outboard motors due to its ability to form a protective oxide surface film with good corrosion resistance but.
This is especially important when protecting aluminum hulls or outboards etc.
For example if your boat is connected to shore power and thus connected to all the other boats at the dock you may choose weaker zinc over aluminum to minimize the electrical activity.
We exclusively specialize in the sale of sacrificial zinc aluminum and magnesium anodes for recreational and commercial boaters.
More active than zinc aluminum anodes are a good compromise where fresh and salt water mix such as the brackish water of river deltas or if you use your boat in a variety of water types.
Aluminum for brackish water.
There are a few reasons why many manufacturers and boaters use aluminum over zinc or magnesium anodes.
Over 250 000 orders shipped.
The choice of zinc depends on your boating environment.
The extra driving potential provides much better protection.
It has not happened already only because the cost of aluminum anodes has been higher than zinc without any discernible benefit to the boat owner.
The advantages of aluminum anodes.
Today aluminum is actually cheaper than zinc.
Zinc anodes zinc is traditionally cheaper and more commonly used than aluminium used for sacrificial anodes that have lower electrons to dissolve to protect the more valuable metal parts of a boat.
In addition aluminum anodes tend to last longer they work better than zinc in brackish.
Market and are the same zincs sold by the major marine supply stores and your local boat yard.
Zinc is too passive for brackish water where it gets covered in a zinc oxide film and becomes inactive.
All our zinc anodes are made to mil spec standards mil a 18001 and our aluminum anodes are pressure die cast and engineered to mil a 24779 ensuring longevity and precision.
We carry zinc anodes aluminum anodes and magnesium anodes for any of your corrosion protection needs for boats yachts commercial vessels and all types of pleasure crafts.
But if your boat has a galvanic isolator or you re not plugged in the more active anode might be a better choice.
While bolting an anode onto your boat may seem unnecessarily complicated at first glance the cathodic protection gained by attaching an anode or zinc to your aluminum boat to prevent galvanic corrosion of your hull is always a good move.
Aluminum alloy anodes are almost certainly to become more common.
In recent years aluminum has dropped in price making it a more attractive choice for manufacturers when installing sacrificial anodes onto their new vessels engines strainers heat exchangers etc.
